Is anyone updating their iOS now since a jailbreak will be released?
I would stay at the most recent firmware before 6.1 for your device (so, 6.0.1/6.0.2).
The developers have not said for sure that the jailbreak will be for 6.1 and not for 6.0.1/6.0.2.
You don't want to make the mistake of upgrading to 6.1 beta 5/GM, having Apple release it to the public, closing the signing window for 6.0.1/6.0.2, then being stuck on 6.1, should the jailbreak be not for 6.1.
It's speculated by interpretation of the tweets that it WILL be for 6.1, but if I were you, I'd rather be safe than sorry!